Tub stopper



FIG. 1 is a top plan view of a tub stopper showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a cross sectional view taken on line 3--3 of FIG. 1; and

FIG. 4 is a cross sectional view taken on line 4--4 of FIG. 1.

The ornamental design for a tub stopper, as shown.